Last name Брейнер (Breiner 
, Breyner , Brejner 
) , globally, is quite a rare surname. The surname Брейнер is habitual in Austria, where it is quite a rare surname, Denmark, and Portugal. Measured by absolute frequency, it is the most numerous in the United States, Germany, and Colombia. Also, Брейнер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Breiner, Breyner | Germany, United States, Austria, Colombia, Guatemala |
| Brejner | Democratic Republic of the Congo, Poland, Denmark |
| Брейнер | Ukraine, Russia, Kazakhstan |